Why is Bullets Wireless Z3 better than Life U2i?
- Battery life36 h vs 3 h12×
Why is Life U2i better than Bullets Wireless Z3?
Life U2i has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Neckband | Neckband |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Driver size | — | 10 mm |
| Spatial / 3D audio | Yes | — |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Noise reduction for calls | Yes | Yes |
| Battery & charging | ||
| Battery life | 36 h | 3 h |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | — |
| Bluetooth version | 5.4 | — |
| Design & build | ||
| Protection rating | IP55 | IPX5 |
| Water resistance (IPx) | IPx5 | IPx5 |
| Dust protection (IP) | 5 | — |







